I'll point out that theres a couple of things that change the context if one considers the backlog to simply be our loot:
-Thunder Mountain exists very close by and was where the Anvils of Doom were made. Once K8P calms down that place is extremely interesting to both Kragg and Thorek and is populated by Dragon Ogres who are an entirely new lootable faction, even barring whats in Thunder Mountain itself.
-Karak Drazh has gotten a beating and is the drop off point fot three thousand years of Greenskin loot. Its a giant lootpile we can rustle through.
-Iron Rock is probably going to be more populated and further away, but has the same idea.
-The Skaven may raid at our borders or there may be colonies nearby we can raid for loot. Luckily if we trust the Golds with Skaven stuff it becomes not our problem.
-When K8P calms down the Nagarythe Adventure is likely to be on everybody's minds and many people's votes, regardless of how far we actually are in the lists of preparation people keep putting up if the push for going asap is anything to go by, because people want to be doing things that aren't research which is entirely understandable and that's not really a place where we're going to be doing research. It is a place where we're going to get whack loads of more loot though.
-There is also our coin, which sits as a studiable artifact along with all the other loot that if it actually produces something when we poke it is an enormous research project in the same vein as the Vitae going drom 2ish to over 10 projects from a single activity.
So overall our crossection of stuff we can reach out and touch if we want to go do things and loot is not going to change much between K8P being a war zone, and being calm because Boney likes to keep us busy.
If one considers loot only a part of the backlog, one will note we have another avenue which spews out new topics in the form of:
-The multifaceted paths of: Vitae research, Cross Wind research(if its possible), and the Coin(if its possible) as I already mentioned. One big Project that we can work away at for years going by how the possibilities exploded after one action put into it, with two others.
If each option on Vitae simply produces one other option in the chain, we'll get upwards of 20 actions or *five years* of full court press with no one helping and three and a half years of the Golds helping and doing nothing else.
This does not include all of the paper or book writing which exists on top of this.
Then there's the fact that by interacting with our enemies we generate papers on their magic, tech, and tactics. And there's a plentitude of targets right here in the neighborhood.
E: Additionally this all isn't happening in a passive world. If we take years to chew through it, stuff outside Is gonna change and come knocking, which will lilely mean more fish jumping into the boat.